update « HBM « JPA Q&A





1. Hibernate: hbm2ddl.auto=update in production?    stackoverflow.com

Is it okay to run Hibernate applications configured with hbm2ddl.auto=update to update the database schema in a production environment?

2. Set creation and update time with Hibernate in Xml mappings    stackoverflow.com


I'm using Hibernate with Xml mappings. I have an entity that has two fields creationDate and updateDate of type timestamp, that have to be filled with the current UTC time ...

3. Update database schema with hibernate    stackoverflow.com

<property name="hibernate.hbm2ddl.auto">update</property>
i can create my database schema, it automatically add properties, constraint, key etc... But what about UPDATE the database schema? If i remove some property from my entities, hibernate doesn't remove it, ...

4. Hibernate: hbm2ddl.auto=update und autoincrement    stackoverflow.com

If Table has no auto_increment, exception «org.hibernate.HibernateException: The database returned no natively generated identity value» will be thrown if i try insert something in Table. Id is mapped just as:

  ...

5. hibernate.hbm2ddl.auto=create-update ??    forum.hibernate.org

In my hibernate.properties file, I have been using: Code: hibernate.hbm2ddl.auto=create Of the possible (update, create and create-drop) options, this seemed like the best one to use to ensure my HSQL database was started automagically. This allows me to create a sample app where users don't have to install/start the database manually. This has been working, but it blows away the database ...

6. set the "hbm2ddl.auto" to "update" in hi    forum.hibernate.org

Hi, I would like to configure hibernate to keep my datebase data after my session exixts. So I change my "hbm2ddl.auto" to "update" in my configuration. like this in my code, but it still does not work. Can someone please help me with this. Thank you. static { try { configuration = new Configuration(); configuration.setProperty("hibernate.hbm2ddl.auto", "update"); sessionFactory = configuration.configure().buildSessionFactory(); } catch ...

7. Reload or Update *.hbm.xml file problem using Netbeans5    forum.hibernate.org

Hi, all: I met a strange problem using hibernate 3 in Netbeans5. When I wrote an Applicant.hbm.xml, I mistyped my Applicant table id name: --------------------------Wrong Config---------- (its column should be applicant_id) applicants_applicant_id_seq --------------------------Right Config--------------------------- applicants_applicant_id_seq ---------------------------------------------------- After I made the modification, I ...

8. hbm2ddl.auto=update - Closing the connection provider?    forum.hibernate.org

Hello all, I am new to hibernate and am trying to figure out why I am encountering issues with the hbm2ddl.auto configuration. I am using the c3p0 connection pooling in conjunction with hibernate. I create a data source using c3p0 and use that as the connection data source for hibernate With [i]hbm2ddl.auto=create [/i] (create all tables from scratch) the session factory ...

9. hbm.xml file does an update instead of an insert- Helppppp    forum.hibernate.org

Hibernate Community View topic - hbm.xml file does an update instead of an insert- Helppppp Login Register FAQ Search View unanswered posts | View active topics Board index Hibernate & Java Persistence Hibernate Users All times are UTC - 5 hours [ DST ] hbm.xml file does an update instead of ...





10. hbm2ddl.auto - update not working    forum.hibernate.org

11. hbm2ddl doesn't update table    forum.hibernate.org

I have the same problem, I've figured that any changes to existing columns are not taken into effect. It looks like it only scans based on table and column names. If they exist, it doesn't inspect their properties. Can anyone confirm this and state if this functionality is to be expected in the near future? Thanks Jonny

12. Unexpected FKs with hbm2ddl.auto=update    forum.hibernate.org

Author Message tieTYT Post subject: Unexpected FKs with hbm2ddl.auto=update Posted: Sat Oct 18, 2008 10:43 pm Newbie Joined: Fri Dec 14, 2007 3:08 pm Posts: 3 I am getting some weird FKs created on my PlayableCharacter table. I'm using postgresql. Here's \d playablecharacter: "fk8460341b2a06029f" FOREIGN KEY (id) REFERENCES playertype(id) "fk8460341b32156bc3" FOREIGN KEY (playertype_id) REFERENCES playertype(id) "fk8460341ba6595463" FOREIGN KEY (user_id) ...

13. hbm2ddl.auto=update not works normally on DB2    forum.hibernate.org

Hi I have an application based on DB2. My application has a table named 'roles', set hibernate hbm2ddl.auto=update. When first deploy my application, hiberante finds a built-in table 'roles' already in syscat schema, so it will not create my 'roles' any more. Below is my hibernate.hbm.xml: Code: ...